Delta E calculates and quantifies the difference between a reference colour and the projector’s actual colour that attempts to match it, based on L*a*b* coordinates. Representing "a difference in sensation," a Delta E value of 1.0 is the smallest colour difference perceptible to the human eye, and a Delta E value of less than 1.0 is imperceptible.

What is Color Accuracy?

Color perception can be subjective - some may see red while others see pink. Rec. 709 color standard was created by ITU (International Telecommunication Union) for TV, movie and A/V industries to ensure all HD equipment including displays, DVDs, and Blu-rays use the same color gamut, resolution, frame rate and video specifications.

Rec.709 Color Space

Rec. 709 uses specific red, green and blue colours and illuminant D65 (6500k) for the white point to build a standardized colour space and reproduce accurate colour gamut and grayscale.

DCI-P3 Color Space

DCI-P3 is a common RGB colour space for digital movie projection from the American film industry. Often referred to as "wide gamut," DCI-P3’s range is 26% larger than sRGB / Rec.709. DCI-P3 is expected be adopted in television and home cinema systems as a step towards implementation of the significantly wider Rec. 2020.

D65: The Standard Daylight Illuminant

Used by Rec. 709 as its white point, Illuminant D65 is a commonly used standard defined by the International Commission on Illumination (CIE) to represent average daylight with a correlating colour temperature of approximately 6500 K.

100% Rec.709 Color Starts from the Light Source

Leading Light Source Technology with Waveform Analysis

Sensation comes from reality. CinematicColor™ technology enables reproduction of the purest colors, skipping no hardware details related to imaging. BenQ R&D utilizes new leading light source technology with strict waveform analysis to ensure that the color temperature of the projected light accurately reproduces the ultimate color of the Rec. 709 color gamut.

When watching projected movies, contrast perception is an effect produced by a series of single frames. ANSI Intra-Image Contrast evaluates the contrast of a series of images more effectively instead of the common FOFO contrast ratio. Because it is unlikely that a screen will change from full-black to full-white in normal viewing, a projector with high ANSI contrast will deliver superior depth of field and 3D effects.

RGBRGB Color Wheel

Of all DLP projector components, the color wheel has the greatest effect on color. Achieving perfect balance between color accuracy and brightness requires high precision and stringent quality control. Because even nanometer differences create great differences to the color spectrum, BenQ CinematicColor™ uses precise nanometer-level references to test over 20 combinations of color wheel angle and coating. Each color wheel is carefully fabricated with high-pure-color coatings to meet Rec. 709 color gamut requirements and reproduce the true color of Hollywood films.

Should Cinema Projection be as Bright as Possible?

For home projection to be truly cinema-like, excessive brightness can lower dynamic contrast and cause blackness and colour reduction. Proper projection brightness depends on ambient lighting, projection distance, eye comfort, display lifespan and performance. A brightness range of 12-22 fL (foot-lambert) is ideal as scientifically derived by the Society of Motion Picture & Television Engineers (SMPTE) and recognized by theaters around the world. For home projectors with a 120” 1.0 gain screen, the optimum brightness is 1000 to 2000 ANSI lumens.

Only BenQ Provides a Factory Calibration Report

Using special instruments and software, each CinematicColor™ projector is tested and adjusted for precise D65 color temperature, gamma, black level, white level, neutral gray, RGBCMY color tracking, hue, saturation, brightness and output from different interfaces based on ITU-R Rec. 709. Collecting all data for individual CinematicColor™ factory calibration reports, we are the industry’s only brand to adopt such high standards of color gamut and gamma calibration to exceed Rec.709 standards.
*Factory calibration reports included with CinePro and CinePrime series, except X12000, W8000, W3000.